Affilication of Author(s):齐鲁交通学院
Patent Applicant:yaozhanyong,jianghongguang,zhangjizhe
Type of Patent:发明
Application Number:201910248789.5
Number of Inventors:3
Service Invention or Not:no
Application Date:2019-03-29
Publication Date:2020-01-07
Authorization Date:2020-01-07